The Chaco War was fought from 1932 to 1935. It was between Bolivia and Paraguay over control of the northern part of the Gran Chaco region, which was thought to be rich in petroleum. The war is also r
Paraguayan (1924, 1927 and 1932) and Bolivian (1928) stamps. The 1924 Paraguayan stamp shows no border with Bolivia. The 1927 stamp shows a border in the northern part of the Gran Chaco. By 1932, the border had moved even farther north and the disputed territory is called the Chaco Paraguayo; with a slogan saying "was, is and will be [ours]". The Bolivian stamp labels the region as the Chaco Boliviano.
Maxim machine gun manned by Paraguayan soldiers
José Félix Estigarribia, commander in chief of Paraguayan army
Hans Kundt, commander in chief and Minister of War of Bolivia
Enrique Peñaranda del Castillo was a Bolivian general who served as the 38th president of Bolivia from 1940 until his overthrow in 1943. He previously served as commander-in-chief of the country's arm
General Peñaranda with President Salamanca in the Chaco.
Commanders-in-chief of both armies meet at Merino Post, 18 July 1935
Portrait of Peñaranda as President by Zenón Sansuste, Palacio Quemado